[mso] Re: Access Select Query
- From: "Jim Pettit" <jimpettit@xxxxxxxxx>
- To: <mso@xxxxxxxxxxxxx>
- Date: Thu, 24 Mar 2005 08:40:28 -0800
Glenda--
As far as I know, Access makes no real distinction between the two (although
I may be wrong). I believe that when the Jet database engine parses the
query, it internally converts the two formats into the same thing
internally; that is, the DB engine makes a list of each of the values, then
compares each item in that list against the table or index. FWIW, I usually
use the IN("value1", "value2") construct, as I tend to build a lot of
queries on the fly from VBA code, and that allows me to, for example, build
shorter query strings, strings that are more readable when debugging, and
strings that can be imported/exported to/from Excel via the CSV format.
Also, when using the IN, a subquery or series of nexted subqueries can be
placed within the parentheses. For instance:
SELECT vegetables FROM tblProduce WHERE type IN(SELECT type FROM tblTypes
WHERE type = 'cruciferous')
Hope this helps...
--Jim
-----Original Message-----
From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx] On Behalf
Of Glenda Wells
Sent: Thursday, March 24, 2005 8:21 AM
To: mso@xxxxxxxxxxxxx
Subject: [mso] Access Select Query
for criteria, is it better to use
in ("value1", "value2")
OR
is it better to use
"value1" or "value2"
OR does it not matter at all?
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